摘要

The stability properties of sampled-data control systems, both linear and non-linear, are investigated tinder nonequidistant sampling condition. The closed-loop stability conditions respectively for linear and nonlinear sampled-data systems with linear digital feedback controllers are established with detailed proof. In addition, some closed-loop stabilization results are obtained, which generalize the existing results by allowing the sampling period to be arbitrary and time-varying. These results are further extended to the sampled-data systems consisting of both nonlinear continuous plants and nonlinear digital controllers.